topic Changing Drawing Title Object Parameters in Archicad C++ API

Changing Drawing Title Object Parameters

Danny Sparks-Cousins — Thu, 18 Jul 2024 04:52:50 GMT

Hi all,

I am looking to use the API to change custom parameters in a custom title object attached to a drawing, placed on a layout.

Documentation suggests API_DrawingTitle contains the GUID of the placed title element (the placed object), but if I use ACAPI_Element_Get with the GUID from element.drawing.title.guid I get an APIERR_BADID error. Is it possible to modify the custom GDL title object parameters of a placed drawing with custom title?

I have the layout already open and active when testing this, so the database should already be correct.

Thanks,

Danny

Re: Changing Drawing Title Object Parameters

Akos Somorjai — Fri, 19 Jul 2024 11:02:42 GMT

Hi Danny,

You should be able to modify the title's parameters via the original drawing element's memo (specifically the `params` member should contain those values).

Best, Akos

Re: Changing Drawing Title Object Parameters

Danny Sparks-Cousins — Mon, 22 Jul 2024 09:35:01 GMT

Hi Akos,

Thanks - that works for what I need. So we cant use ACAPI_LibraryPart_ChangeAParameter and associated functions? I receive errors no matter what I set paramOwner.type.typeID to.

Kind regards,
Danny

Re: Changing Drawing Title Object Parameters

Akos Somorjai — Mon, 05 Aug 2024 08:06:00 GMT

Hi Danny,

The drawing title is tightly coupled with the drawing itself, so it cannot be handled separately.

Best, Akos